Roy*_*ley 6 android broadcastreceiver android-intent
我的意图是在某种条件下发送的.日志证明它仅发送ONCE,但接收器正在接收它多次毫秒.
10-01 10:09:59.201: I/System.out(13543): SENDER CHECKPOINT
10-01 10:09:59.211: I/System.out(13543): RECEIVER CHECKPOINT
10-01 10:09:59.291: I/System.out(13543): RECEIVER CHECKPOINT
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我已经确认只有一个广播接收器注册,并且只有一个动作过滤器与注册的BR一起使用.它仅用于单个活动,其中在另一个线程中运行的服务广播intent.同样,日志证实了ONE广播和多个收据.更重要的是,额外信息在回显收据中为空.
怎么会这样?操作系统是否有可能回应它?
发送广播的代码:
private void sendBroadcast(boolean status, String message, String action){
System.out.println("SENDER CHECKPOINT");
Intent intent = new Intent(action);
Bundle bundle = new Bundle();
bundle.putBoolean("status", status);
bundle.putString("message", message);
intent.putExtras(bundle);
sendBroadcast(intent);
}
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接收广播的代码:
private class displayUpdate extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
System.out.println("RECEIVER CHECKPOINT");
};
}
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注册:
@Override
public void onResume() {
super.onResume();
try {
// just in case onResume is called w/o a pause
try{activity.unregisterReceiver(displayReceiver);}catch(Exception e){}
filterRefreshUI = new IntentFilter(REFRESH_UI);
activity.registerReceiver(displayReceiver, filterRefreshUI);
} catch (Exception e) {
e.printStackTrace();
}
}
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注销:
@Override
public void onPause() {
super.onPause();
try{unregisterReceiver(displayReceiver);}catch(Exception e){}
}
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真的很简单!然而接收器发射两次!
如果您想知道 - 在onPause/onResume中处理注册/取消注册,以防止在应用程序被操作系统杀死时泄漏内存.
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